Browsing Teses e dissertações by Advisor "Perez, Sonia Cristina Juliano Gualtieri de Andrade"

Now showing items 21-28 of 28

    • Fracionamento de extratos bioativos de Drimys brasiliensis Miers e identificação de compostos com atividade fitotóxica e inseticida 

      Anese, Simoni (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 21/02/2014)
      Along its evolutionary history, plants have developed biosynthetic routes to synthesize and accumulate a wide variety of secondary metabolites, which respond to the environment characteristics where they occur. The studies ...

    • Atividades biológicas de duas espécies de Myrsine L. (Primulaceae) e de Tithonia diversifolia (Hemsl.) A. Gray (Asteraceae) 

      Miranda, Maria Augusta Ferraz Machado (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 31/03/2015)
      Plants species from Brazilian savanna often have defense mechanisms in response to the low nutrient content of the soil, the light intensity, the competition for resources and drought, pronounced by deep water deficit, to ...

    • Atividade fitotóxica de Serjania lethalis A. St.-Hil. e Sapindus saponaria L. (Sapindaceae) e identificação de metabólitos secundários 

      Grisi, Patricia Umeda (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 06/03/2015)
      The organization and dynamic of community are determined, among other factors, by the balance of positive and negative interactions of species. Research of plants with allelopathic activity comes from the need to introduce ...

    • Propriedades fungicida e antioxidante de extratos vegetais 

      Takao, Leandro Kenji (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 30/03/2015)
      The Brazilian savanna holds the richest flora among the tropical savannas, being one of the hot spots for conservation of the biodiversity in the world. However, the chemical potential of its plant species is still underused ...

    • Potencial fitotóxico de Serjania lethalis A. St-Hil 

      Pereira, Viviane de Cassia (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 29/08/2013)
      The study of the phytotoxic potential of species of the Cerrado has been of great interest to researchers seeking in nature sources of substances with properties similar to those of synthetic herbicides. Serjania lethalis ...

    • Potencial alelopático de Sapindus saponaria L. (Sapindaceae) 

      Grisi, Patricia Umeda (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 24/03/2010)
      Studies on allelopathy have been important in understanding the processes by which plants influence their neighborhood by releasing substances of secondary metabolism and its application in agriculture, forestry systems ...

    • Aspectos da germinação e da conservação de sementes de espécies do gênero Tabebuia (Bignoniaceae) 

      Borba Filho, Aluisio Brigido (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 08/12/2006)
      The genus Tabebuia in the family Bignoniaceae comprises about 100 species, several of which have medicinal, ornamental, and timber value, in addition to their environmental importance. These species produce large amounts ...

    • Alelopatia e bioprospecção de Rapanea ferruginea e de Rapanea umbellata 

      Novaes, Paula (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, , 11/07/2011)
      Allelopathy is a process that involves primary or secondary metabolites produced by plants and microorganisms, which influences the growth and development of agricultural and biological systems. The intensity of plant ...